2111240406 has 16 divisors (see below), whose sum is σ = 4606342848. Its totient is φ = 639769800.

The previous prime is 2111240393. The next prime is 2111240419. The reversal of 2111240406 is 6040421112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2111240393) and next prime (2111240419).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15994180 + ... + 15994311.

It is an arithmetic number, because the mean of its divisors is an integer number (287896428).

Almost surely, 2^2111240406 is an apocalyptic number.

2111240406 is an abundant number, since it is smaller than the sum of its proper divisors (2495102442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111240406 is a wasteful number, since it uses less digits than its factorization.

2111240406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31988507.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2111240406 is about 45948.2361576590. The cubic root of 2111240406 is about 1282.8598989187.

Adding to 2111240406 its reverse (6040421112), we get a palindrome (8151661518).

The spelling of 2111240406 in words is "two billion, one hundred eleven million, two hundred forty thousand, four hundred six".